<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    
    <!-- 商品导航组件区域 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
    </view> 
  </view>
</template>

<script>
  export default {
    data() {
      return {
        goods_info:{},
        
        options:[{
          icon:'headphones',
          text:'客服'
        },{
          icon:'shop',
          text:'店铺'
        },{
          icon:'cart',
          text:'购物车',
          info:2
        }],
        buttonGroup:[{
          text:'加入购物车',
          backgroundColor:'#ff0000',
          color:'#fff'
        },{
          text:'立即购买',
          backgroundColor:'#ffa200',
          color:'#fff'
        }]
      };
    },
    onLoad(options){
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id){
        const {data:res}=await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200)return uni.$showMsg()
        
        // 使用字符串的replace()方法，为img标签添加行内的style样式，从而解决图片底部空白间隙的问题
        res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
        
        this.goods_info = res.message
      },
      //实现轮播图的预览效果
      preview(i){
        //调用uni.previewImage()方法预览图片
        uni.previewImage({
          //预览时，默认显示图片的索引
          current:i,
          //所有图片url地址的数组
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height:750rpx;
  image{
    width:100%;
    height:100%;
  }
}
.goods-info-box{
  padding:10px;
  padding-right:0;
  .price{
    color:#C00000;
    font-size:18px;
    margin:10px 0;
  }
  .goods-info-body{
    display:flex;
    justify-content: space-between;
    .goods-name{
      font-size: 13px;
      margin-right:10px;
    }
    .favi{
      width:120px;
      font-size:12px;
      display: colunm;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color:gray;
    }
  }
  .yf{
    font-size: 12px;
    color:gray;
    margin:10px 0;
  }
}
.goods_nav{
  position:fixed;
  bottom:0;
  left:0;
  width:100%;
}
.goods-detail-container{
  //下方被导航栏遮住，设置padding取消遮挡
  padding-bottom: 50px;
}
</style>
